Two separate attacks blamed on the Kurdish rebels and a clash between the militants and Turkey's security forces have left four security personnel and one civilian dead in the southeast, officials and news reports said Wednesday. According to AP, the rebels of the Kurdistan Workers' Party, or PKK, on Wednesday detonated a car bomb on a road in the town of Dargecit, in Mardin province as an armored police vehicle was passing by, the Anadolu Agency reported. The explosion killed a road-sweeper and wounded a police officer. Three policemen were killed in a similar attack late on Tuesday when PKK militants detonated an improvised explosive device on a road near the town of Silopi, in Sirnak province, the agency reported. On Wednesday, a soldier was killed in a clash with Kurdish militants in the town of Silvan, in Diyarbakir province, where authorities have enforced a curfew for the past nine days, the military said.